June 30, 2015 'Kate Plus 8' Sneak Peek! Lots of Birthday Drama as Sextuplets Turn 11 "Extra" has a sneak peek of the upcoming episode of TLC's "Kate Plus 8," in which Kate Gosselin throws a birthday party for her sextuplets, who are turning 11. The birthday planning was going well, but then things hit a snag when the girls' hotel sleeping situation got seriously crowded and out of control. Take a look! Watch the full "Kate Plus 8" special on Tuesday, June 30 at 10 PM on TLC.